Zulkarnaen, Roi. “Modification of Cow Manure Fixed Dome Type Biogas Installation Kanti Sembada Farmers Group in Candikuning Village”. Jurnal BETA (Biosistem Dan Teknik Pertanian), vol. 5, no. 1, Feb. 2026, pp. 22-27, doi:10.24843/JBETA.2017.v05.i01.p03.